Dependence of Exciton Binding Energy on Magnetic Field in Parabolic Quantum Well Made of Diluted Magnetic Semiconductors

• Authors: F. Kyrychenko , J. Kossut
• Languages of publication: EN

Abstracts

EN

Influence of an external magnetic field on exciton binding in parabolic quantum wells composed of diluted magnetic semiconductors are studied variationally using separable trial wave functions. The effect is due to a change of shape of the confining potential induced by an external magnetic field. The validity of the results of the calculations is checked by solving numerically the corresponding one-dimensional Schrodinger equations. Further, we check the results by performing variational calculations in the case of the Ex11 exciton (i.e. with electron and hole in their ground subbands) with a non-separable trial wave function. It is shown that, contrary to the case of a rectangular quantum well, for the parabolic quantum well the magnetic field dependence of the binding energy is significant.

Keywords

EN

71.35.Cc; 73.20.Dx

Discipline

• 71.35.Cc: Intrinsic properties of excitons; optical absorption spectra

• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 3
• Pages: 406-410

Dates

published

1998-09

Contributors

author

F. Kyrychenko

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Kossut

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

Identifiers

DOI

10.12693/APhysPolA.94.406